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Home >> Lexus >> 2009 >> GS 350 AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 12 (Smart Access System (Keyless Start) (Diagnostics - Introduction)) >> Smart Access System With Push-Button Start >> On-Vehicle Inspection >> On-Vehicle Inspection
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On-Vehicle Inspection

WARNING: This page is about a different car, the 2009 Lexus GS 460. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK POWER SOURCE MODE CHANGE FUNCTION 
    1. Check the function of the engine switch.
      1. Check that power source mode changes in accordance with the conditions of the shift position and brake pedal.
        Brake Pedal Shift Lever Power Source Mode Pattern
        Depressed P or N Position When the engine switch is pushed once.
        • off → engine start
        Not depressed P position Each time the engine switch is pushed.
        • off → on (ACC) → on (IG) → off
        Except P Position Each time the engine switch is pushed.
        • off → on (ACC) → on (IG) → on (ACC)
        - P Position When the engine switch is pushed in the on (IG) condition.
        • on (IG) → off
        - Except P Position When the engine switch is pushed in the on (IG) condition.
        • on (IG) → on (ACC)
    2. Check if power source mode changes without pressing the engine switch.
      1. With power source mode on (ACC) and the shift position in P, wait for least 1 hour. Check that power source mode changes from on (ACC) to off automatically.
  2. CHECK INDICATOR CONDITION 
    Fig 1: Identifying Engine Switch Indicator Light
    GTY104304Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Check the indicator on the engine switch.
      1. Check that the engine switch indicator illuminates and changes its color according to the table below.
        Power Source Mode/Condition Indicator Light Condition
        Brake pedal released Brake pedal depressed, shift lever in P or N
        off OFF Illuminates ON (Green)
        on (ACC, IG) Illuminates ON (Amber) Illuminates ON (Green)
        Engine running OFF OFF
        Steering lock not unlocked Flashes (Green) for 30 sec. Flashes (Green) for 30 sec.
        System malfunction Flashes (Amber) for 15 sec. Flashes (Amber) for 15 sec.
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